6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Felix Kuehling <Felix.Kuehling@xxxxxxx>
[ Upstream commit 51b79f33817544e3b4df838d86e8e8e4388ff684 ]
abo->tbo.resource may be NULL in amdgpu_vm_bo_update.
Fixes: 180253782038 ("drm/ttm: stop allocating dummy resources during BO creation")
Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index ec1ec08d40584..7a67bb1490159 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1094,7 +1094,8 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va,
struct drm_gem_object *gobj = dma_buf->priv;
struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
- if (abo->tbo.resource->mem_type == TTM_PL_VRAM)
+ if (abo->tbo.resource &&
+ abo->tbo.resource->mem_type == TTM_PL_VRAM)
bo = gem_to_amdgpu_bo(gobj);
}
mem = bo->tbo.resource;
--
2.42.0
